Eclipse Software for Java Development

Preliminaries for Both Windows and Macs

Eclipse is Java software. If you don't have a JDK installed,
before proceeding further
go here
to download and install an appropriate 64-bit JDK for your computer. The
most recent JDK will probably be fine to use.

If you are installing onto Windows, you will also need the 32-bit JRE.
Use the previous link to download and install the same JRE version as the
JDK you installed.

Mac Installation

Open the archive. Drag the Eclipse folder into your Applications
folder.

Open the Eclipse folder in your Applications folder.

Right-click the eclipse program in the Eclipse folder and
select Open. Click Open in the warning dialog that will
open. eclipse should start. After this, you should be able to start
eclipse by simply double-clicking its icon.